20658308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{653}}^1\times {\mathrm{719}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 39553920

約数和(自身を除く): 18895612

約数列:

[1, 2, 4, 11, 22, 44, 653, 719, 1306, 1438, 2612, 2876, 7183, 7909, 14366, 15818, 28732, 31636, 469507, 939014, 1878028, 5164577, 10329154, 20658308]

約数ペア:

[(1, 20658308), (2, 10329154), (4, 5164577), (11, 1878028), (22, 939014), (44, 469507), (653, 31636), (719, 28732), (1306, 15818), (1438, 14366), (2612, 7909), (2876, 7183)]